Milking device.



G. Y. THORNTON.

MILKING DEVICE.

APPUCATIQN FILED FEB.15 19]]. LQ62 871 a Patented Apr. 16, 1918.

2 SHEETSS.HEET l.

ATTORNEY G. Y. THORNTON.

MILKING DEVICE.

APPLICATION FILED FEB. 15. 1917. 1,262,871 Patented Apr. 16,1918.

2 SHEETSSHEET 2.

WlTN ESSES ATTOR NEY GEARY Y. THORNTON, OF OAKLAND, OREGON.

MILKING DEVICE.

Specification of Letters Patent.

Patented Apr. 16, 1918.

Application filed February 15, 1917. Serial No. 1%,827.

To all whom it may concern:

Be it known that I, GEARY Y. THoRN'roN, a citizen of the United States, residing at Oakland, in the county of Douglas and State of Oregon, have invented certain new and useful Improvements in Milking Devices, of which the following is a specification.

This invention relates to devices for dilating cavities and canals and the object of the same is to provide a device that is especially adapted for use in milking cows.

More specifically, this invention contemplates the production of an instrument for insertion in the teat of a cow when the same is in such condition as to preclude squeezing thereof.

Another object of this invention is to provide a dilating instrument that is so constructed as to provide for its ready insertion in a teat of a cow and after its insertion portions thereof being moved relatively to dilate the teat so that the cow can be milked without permanent injury orpain to her.

A still further object of thisinvention resides in the production of a device of the kind described that will secure the dilating members of the instrument in a fixed position in operation. r

A still further object of this invention is to provide means for use in connection with this dilator for efliciently milking the cow.

A still further object of this invention is to provide a dilating instrument of the kind above described that is simple inconstruction, eflicient in operation and consists of the minimum number of parts.

With these and other objects in View, this invention consists of certain novel constructions, combinations and arrangement of parts, as will be hereinafter fully described and claimed.

In the accompanying drawings:

Figure 1 is a top plan view of the device in a compact position.

Fig. 2 is a view in elevation of the im-.

proved device as shown in Fig.1.

Fig. 3 is a sectional view taken on line 33 of Fig. 2.

Fig. 4 is a view in elevation of one of the dilating members used in connection with this invention.

Fig. 5 is a view in elevation of one of the supporting plates of this device.

Fig. 6 is a view in elevation of the device for use in connection with the dilator attached to a cow.

Fig. 7 is a view in end elevation of the device as shown in Fig. 6.

Referring to the parts by reference numerals, 10 denotes the post of the instrument having the head or finger engaging portion 11 at one end and the opposite end thereof enlarged and flattened as at 12. A series of plates 13 the same being substantially V-shaped are secured to each side of the enlarged flattened end 12 0f the post 10 by means of the tube 14: passing through the aperture 15 one of which is formed in each of the plates 13. At the upper ends of the plates 13 the same are rolled as at 16 and.

in the opposite ends of the rolled portions 16 are permanently secured stub axles 17 for a purpose to be hereinafter set forth A plurality of retaining springs are secured to the flattened end 12 of the post 10 at a polnt lower than the securement of the plates 13, each of said springs 18 having an enlarged head 19 at the free end thereof and a series of teeth 20 on one face thereof.

The dilating members are designated in their entirety by the numeral 21 the same beingidentical in construction and the description of one will suflice. Each of the dilating members comprise a handle portion 22 having an enlarged head 23 at the lower end thereof and at the upper end the dilating portion 25 that in turn terminates,

each adapted toreceive one of the stub axles 17 carried by the plates 13. It is to be noted that there are three of the dilating members and they are so arranged and constructed that, when in assembled position, as'clearly shown in Figs. 1 and 2, the knobs 26 thereof will form a complete ball and the 25 a single standard. I

The operation of the device is as follows:

portions The teat of the cow is grasped well adja-.

cent the udder and the milk is therefore brought into the lower portion of the teat.

The lower end of the teat which is as before stated, filled with milk projects below the hand and the instrument is grasped by the hand other than the one engaging the teat, the instrument obviously being in an:

assembled position as shown in Figs. 1' and 2. The ball of-the dilator formed by the sition by means of the lugs 27 that are carried by the arms 22 in engagement with the teeth 20 on the springs 18. From the foregoing it will be understood that a teat d1- ating instrument has been provided that made in the'forln and construction of this invention without departing from the material parts thereof. It is therefore not wished to confine the invention to the exact form herein shownand described, but it is wished to include all such as properly come within the scope claimed.

What is claimed is:

1. In a dilator, a post, a plurality of stub axles supported bysaid post, a plurality of will uniformly spread the teat and will in \dilator arms pivoted on said axles, and

no way injure the same.

In Figs. 6 and 7 I have shown a means I for attachment to the cow when the dilators of the kind above described have been inserted in the teat of the cow. whereby the 'milk will be conveyed'to a suitable receptacle and any likelihood of the milk becoming germ laden-will beobviated.

This attachment includes a pail or receptacle 30 having atop 31 which is provided with a suitable handle 32. A bail 33 is also provided with the receptacle for the obvious urpose. A suitable supply tube 34 is provlded, the same having one end thereof attached to the receptacle 30 by means of the union 35 and the opposite end of the same is in connection with the udder receiving bowl 36 by the union 37 Thebowl 36 is held in posltion, as shown 1n Flg. 6, over the udder, by means of a .pair of straps 38 that are fixedly secured at diametrically opposite points to the bowl. It is of course to be understood that these straps are of such length as to permit them to pass over the back of the animal and one of the same carries a buckle 39 to engage the other of the straps forthe obvious purpose.

After the dilator has been inserted as has been previously described, the bowl 36 can be positioned on the udder of the animal as shown in Fig. 6, by means of the straps 38 and the milk conveyed from the bowl to the receptacle 30 by means of the tube 34. In

means for holding said arms ina desired position.

2QA dilator, a post, a plurality of stub axles carried by said post, a plurality of dilator arms pivoted on said axles, and spring means carried b said post for ret'aining said arms in a esired position.

' 3. In a dilator, a post, a plurality of substantially V-shaped plates secured to said post, certain of said plates having one of their edges rolled to carry stub axles, a plurality of dilator arms, pivoted on said axles and means for retaining said dilator arms in a desired position.

4. In a dilator, a post, a plurality of dilators having operating arms, means on said post for pivotally carrying said dilators, and means on said post engageable with said arms on said dilators to retain said dilators in a desired position.

5. In a dilator, a post, a plurality of dilators each having an operating arm, means on said arms for pivotally carrying said dilator's, and a plurality of springs engageable with said operating arms to retain said dilator in a'certain position.

In testimony whereof I afiix my signature in presence of two witnesses.

GEARY Y. THORNTON.

Witnesses: I

A. G. YOUNG, E. G. Yours, Jr. 

